07h39min de 29 de maio de 2013 (dif | hist) N MccownPennock850 (Criou página com 'Cisco CCNA / CCNP Exam Tutorial: Testing ISDN Links Without Pings To earn your Cisco CCNA and CCNP certifications, you've got to master ISDN - and in spite of what some pe...') (revisão atual)
